The 30-day Ketogenic Cleanse. For those who are brand-new to keto and those who are getting back on track after falling off the wagon, the first 30 days on a ketogenic diet can be challenging. The 30-Day Ketogenic Cleanse is a guidebook for healing the body from the inside out. Most people attempting a keto diet do it completely wrong. Maria Emmerich, on the other hand, bases this cleanse on a true, well-formulated ketogenic diet, helping readers reset their metabolism, regain health, lose weight, and tap into increased energy levels.